Journal article
GISCOD: General Integrated Solid Waste Co-Digestion model
Water research (Oxford), Vol.43(10), pp.2717-2727
2009
Handle:
https://hdl.handle.net/2376/106071
PMID: 19345974
Abstract
This paper views waste as a resource and anaerobic digestion (AD) as an established biological process for waste treatment, methane production and energy generation. A powerful simulation tool was developed for the optimization and the assessment of co-digestion of any combination of solid waste streams. Optimization was aimed to determine the optimal ratio between different waste streams and hydraulic retention time by changing the digester feed rates to maximize the biogas production rate. Different model nodes based on the ADM1 were integrated and implemented on the Matlab-Simulink
® simulation platform. Transformer model nodes were developed to generate detailed input for ADM1, estimating the particulate waste fractions of carbohydrates, proteins, lipids and inerts. Hydrolysis nodes were modeled separately for each waste stream. The fluxes from the hydrolysis nodes were combined and generated a detailed input vector to the ADM1. The integrated model was applied to a co-digestion case study of diluted dairy manure and kitchen wastes. The integrated model demonstrated reliable results in terms of calibration and optimization of this case study. The hydrolysis kinetics were calibrated for each waste fraction, and led to accurate simulation results of the process and prediction of the biogas production. The optimization simulated 200,000
days of virtual experimental time in 8
h and determined the feedstock ratio and retention time to set the digester operation for maximum biogas production rate.
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Details
- Title
- GISCOD: General Integrated Solid Waste Co-Digestion model
- Creators
- Usama Zaher - Department of Biological Systems Engineering, Washington State University, P.O. Box 646120, Pullman, WA 99164-6120, USARongping Li - Department of Biological Systems Engineering, Washington State University, P.O. Box 646120, Pullman, WA 99164-6120, USAUlf Jeppsson - Department of Industrial Electrical Engineering and Automation, Lund University, Box 118, SE-22100, Lund, SwedenJean-Philippe Steyer - INRA, UR 50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, F-11100 Narbonne, FranceShulin Chen - Department of Biological Systems Engineering, Washington State University, P.O. Box 646120, Pullman, WA 99164-6120, USA
- Publication Details
- Water research (Oxford), Vol.43(10), pp.2717-2727
- Academic Unit
- Biological Systems Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900546884401842
- Language
- English
- Resource Type
- Journal article